Lesson Plan: Subitising in Mathematics
Subject: Mathematics
Grade Level: Reception / Kindergarten
Duration: 30 minutes
Topic: Subitising
Learning Objectives
By the end of this lesson, students will be able to:
- Recognise and interpret small quantities without counting (subitising).
- Use visual aids to demonstrate understanding of subitising.
- Engage in cooperative activities to enhance learning.
Materials Needed
- Flashcards with dots (1-5)
- Counting blocks or counters
- A large number line
- Whiteboard and markers
- Subitising game sheets
- Music player for songs related to numbers
Lesson Outline
Introduction (5 minutes)
-
Greeting and Setup:
- Welcome students and gather them in a circle.
- Explain the lesson topic: "Today, we will learn about subitising! Can anyone tell me what they think it means?"
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Discussion:
- Engage students in a brief discussion about recognising numbers without counting.
- Provide examples from everyday situations (e.g., recognising groups of fruits).
Direct Instruction (10 minutes)
-
Definition of Subitising:
- Define subitising in simple terms: "Subitising means seeing how many there are in a group without counting one by one."
- Use visual aids like flashcards to illustrate.
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Demonstration:
- Show flashcards with 1 to 5 dots.
- Ask students to call out the number of dots they see without counting.
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Interactive Whiteboard Activity:
- Write numbers on the whiteboard and ask students how many dots they can see if they were quickly flashed.
Guided Practice (10 minutes)
-
Activity: "Subitising Freeze Game":
- Play a quick round where students have to quickly recognise a set of numbers flashed on a board.
- When the number is shown, they shout out the number quickly.
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Group Work:
- Divide students into small groups.
- Hand out counting blocks or counters for them to create groups of different quantities.
- Allow each group to create a set of dots and have other groups subitise.
Closure (5 minutes)
-
Review:
- Gather students and review what they learned about subitising.
- Show a few final flashcards and ask for group responses.
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Reflect:
- Encourage students to think about where they might see subitising in their everyday lives.
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Goodbye Activity:
- End with a fun number song that incorporates counting and subitising themes.
Assessment
- Observe student participation during the flashcard activity and group work.
- Assess understanding through responses and the ability to subitise accurately during activities.
Follow-Up Activities
- Introduce subitising in daily routines, such as during snack time counting pieces of fruit.
- Homework: Ask parents to identify groups of items at home (e.g., toys, books) and practice subitising with their children.
This lesson plan aims to foster early mathematical understanding through engaging activities that promote recognition of quantities without direct counting.